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In Blackjack, Splitting Is Good and Resplitting Is Better7 January 1997
Multiple spots formed by splitting are subject to some restrictions. 1) Surrender, if offered in a game, is prohibited on the newly-created hands. 2) When aces are split, only one card can be drawn to each. 3) An ace-10 combination on a split hand scores as 21 but not as blackjack. 4) In some games, typically but not always those dealt from single decks, doubling down may not be permitted on hands formed by splitting. 5) If additional pairs are formed on the newly-created hands, resplitting to three or more spots may not be allowed. The accompanying table shows which pairs should be split in multi-deck games when players can double on newly-formed positions. The indicated strategy offers three types of benefits. Splitting lessens the impact of certain weak starts. One case would be a pair of nines facing a dealer's nine-up. With an 18 facing a nine-up, players can expect to lose $0.18 per dollar bet. After a split, each of the player nines has an expected loss of only $0.05 per dollar bet against the dealer's nine-up. Splitting converts certain weak to strong starts. An illustration would be a pair of eights against a dealer's six-up. The initial hand is an underdog; 16 versus six-up presents players with an anticipated loss of more than $0.15 per dollar bet. When the pair is split, each of the eights against the six offers a projected win over $0.11 per dollar bet. Most casinos let their patrons split pairs to only one level. For instance, say a dealt three-three is split. If another three falls on either of the consequent hands, the new pair cannot be re-split but must be played as a six. Gains are greater with resplitting as well as doubling on newly-formed spots. Solid citizens can still expect favorable splitting opportunities on 2.55 percent of all dealt hands. If up to four spots can be formed from any pairs including aces, the number of hands in action will increase by another 0.5 percent. The win expected from the multi-stage splitting will be nearly $0.05 for each dollar at risk on the total number of spots formed. With six- or eight-deck shoes, this trims the house advantage on the game by about 0.5 percent relative to playing totals representing pairs as-dealt. Occasionally, players will resplit pairs into four hands, then double down on each spot. That initial $10 or $25 is suddenly catapulted to $80 or $200. Sure, it gives grown men the collywobbles. But, the extra money is all wagered under conditions favorable to the bettor. And, while there's always the chance of bashing a bankroll badly with the ballooned bet, many a blackjack maven can trace entire session profits to just such hands. As Sumner A Ingmark, the players' poet, fittingly fantasized:
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